Steady showers dropped a little more than half an inch of rain at Dallas/Fort Worth International Airport on Sunday, while areas to the south and southwest were drenched with up to 8 inches of rain, forcing evacuations and stranding motorists.

In the Dallas area, the rain did little to raise low lake levels but was welcome nonetheless.

“We’re still running behind, but every little bit helps,” said meteorologist Jesse Moore with the National Weather Service in Fort Worth.

So far, this year is the sixth-driest on record. But before Sunday’s showers, it was the fourth-driest, Moore said.

Unexpectedly heavy rains pounded Parker and Hood counties with 6 to 8 inches of rain, causing significant flooding in Granbury. About 18 residents had to leave their homes, said Hood County Emergency Management Coordinator Ray Wilson.

Richard Helton said that one minute, floodwaters were at the edge of his Granbury backyard and 20 minutes later they were at the back door of his mobile home.

“That’s when I grabbed the kids and out we went,” Helton said. Outside, he said, “the water was waist-deep.”

Rescue crews also plucked motorists from stranded vehicles.

No serious injuries were reported. American Red Cross officials were on the scene to assist families.

The top rainfall total recorded Sunday was 8.5 inches south of Glen Rose, which is about 16 miles south of Granbury.

Soaking rains were also recorded in Tarrant County. Some Arlington neighborhoods got 2 inches.

It could be a wet week, with a 30 to 40 percent chance of scattered showers through Wednesday. Scattered thunderstorms are possible Monday, Moore said.

High temperatures are expected to be in the low 90s in the next several days, with lows in the mid-70s.